The Saekodive Runner Mask is designed for both Scuba Diving and snorkelling to fit most faces and is compatible with optical lenses. Silicone skirt & strap Replaceable standard buckles Twin lens w. tempered glass Optical Lenses available -1.0 to -7.0 diopter lenses in 0.5 diopter increments and 7.0 to 10.0 diopter lenses in 1.0 diopter increments available here Bi-Focal lenses available -2/ 1, -2/ 2 and -3/ 1 avaiable here
